Traction-engine



(No Model.)

J. J. MOORE.

TRAGTIO'N ENGINE.

No."469.888. Patented Mar. 1, 1892.

WITNESSES: r v lNl/E/VTOI? a W ATTORNEY UNITED STATES ArnNr FFICE.-

JONATHAN J. MOORE, OF THORNTOYVN, INDIANA.-

TRACTION-ENGINE.

' SPECIFICATION forming part of Letters Patent No. 469,888, dated March 1, 1892. Application filed June 1'7, 1891. Serial No. 396,549. (No model.)

To all whom it may concern:

Be it known that I, JONATHAN J. Moons, a citizen of the United States, residing at Thorntown, in the county of Boone and State of Indiana, have invented. a new and useful Improvement in Traction-Engines, of which the following is a specification.

My invention relates to an improvementin traction-engines.

The object of my invention is to provide improved means for mounting the engine upon the traction-wheels and means for increasing the tractive force of the wheels in soft ground, all as hereinafter fully described.

The accompanying drawings illustrate my invention.

Figure l is aside elevation. Fig. 2 is a plan. Fig. 3 represents a partial side elevation, on

'a larger scale, having the traction-wheel removed. wheel.

In the drawings, A is the boiler, carrying the engine and the driving mechanism. (Not shown.)

B is the axle, on the ends of which the carrying-wheels O D are mounted. The axle B is bent so as to pass across the rear of the boiler and project forward along the sides of the boiler and then outward to receive the carrying-wheels. The central portion of the axle is mounted so as to swing in a vertical plane in bearings E E, which are secured to the end of the boiler. Secured to the sides of the boiler, opposite the cranked ends of the axle, are a pair of brackets F F.

Gis a spring arranged between the upper side of the axle and brackets F, respectively, the arrangement being such that the axle is attached to the boiler by means of the bearings E, and the weight of the boiler is supported upon the cranked ends of the axle, which are free to follow the yielding movement of the springs G, on which the carryingwheels are mounted.

The wheels O D are each constructed in the following manner: The rim H and hub I are of common and well-known construction and are connected by wrought-iron spokes extending alternately from opposite ends of the hub to a common plane at the rim in the usual well-known manner. For the purpose of giving greater tractive force to the wheel, particularly in soft ground, I secure at regular intervals to the periphery of the wheel a series of ribs J, which extend radially from and Figet represents a section of the across the face of the rim and project about the width of the rim beyond one side of the wheel. The outer projecting ends of ribs J are connected and supported by an annular ring K, preferably made of wrought-iron, and to which the ends of the ribs J are firmly secured. The face of the wheel thus formedis provided with the usual solid rim having radial ribs thereon and a series of open spaces L, into which the surface of the road may enter. The solid portion of the rim prevents the wheels from sinking in a soft road to too great a depth, and the projecting ends of the ribs having the open spaces between them insures a firm hold upon the road-surface and thus prevents the slipping of the Wheels.

The manner of mounting the wheels on the boiler transmits the thrust of the wheel to .the boiler and the engine with a yielding force, thus preventing undue strain and jar thereto.

I claim as my invention 1. In a traction-engine, the combination of the boiler, the bent axle having its central portion pivoted to the end of the boiler so as to swing in a vertical plane thereon and having its cranked ends extending along the sides of the boiler and then turned outward to receive the carrying-wheels, the pair of carrying-wheels mounted upon the ends of the axles, the brackets secured to the sides of the boiler above the cranked ends of the axle, and the springs interposed between said brackets and the axle, all arranged substantially as shown and described.

2. In a traction-engine, the combination, with the boiler, the bent axle having its central portion pivoted to the end of the boiler so as to swing in a vertical plane thereon and having its cranked end extending along the sides of the boiler and then turned outward to receive the carrying-wheels, fixed supports secured to the sides of the boiler, and springs H. P. H001), V. M. H001). 

